Ben U. Marsan, M.D.
NPI 1518977479ActiveIndividual· Surgery, Vascular Surgery· Darien, CT
Surgery, Vascular Surgery (M.D.) in Darien, Connecticut, trained at Oregon Health Sciences University School of Medicine (class of 1989). In 2024 Medicare paid $185,737 for 251 patients, and Part D covered 131 of their prescriptions, 66% of them generic. Angiodynamics, Inc. was the largest of 8 companies reporting payments in 2025, $12,554 in all, mostly device and supply loans.
Overview
| NPI | 1518977479 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 9, 2006 |
| Last updated in NPPES | May 3, 2022 |
| Certified by provider | May 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 040127 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 1,459 across 81 procedure codes |
| Paid by Medicare | $185,737 |
Part D prescriptions in 2024
| Prescriptions (claims) | 131 · 251 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $36,698 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Vascular Surgery |
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Griffin HospitalDerby, CT
- Norwalk HospitalNorwalk, CT
- Stamford HospitalStamford, CT
Industry payments (Open Payments)
- 2025$12,554 · 17 payments from 8 companies
- 2024$12,597 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Angiodynamics, Inc. | $11,287 | 5 |
| Endologix LLC | $761.52 | 2 |
| Boston Scientific Corporation | $156.03 | 1 |
| Stryker Corporation | $141.81 | 4 |
| Cook Medical LLC | $115.73 | 1 |
What the 2025 payments were for
- Long term medical supply or device loan$11,178 · 3 payments
- Food and Beverage$1,377 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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